Hair Oil For Thick Hair: The Best Oils
- missaazarian
- Oct 1
- 4 min read
Updated: Oct 6

What is Meant by Thick Hair?
When we talk about thick hair, we’re referring to the density of hair on the scalp, not the texture or width of individual strands. Thick hair simply means you have a higher number of hair strands which gives your hair a fuller and more voluminous appearance. It’s important to note that thick hair can be fine, medium, or coarse in texture. As a result of the higher strand count, thick hair often requires more time to dry, detangle, and evenly distribute moisture or products.
This density means that thick hair often needs more nourishment and hydration overall, since there’s more hair to keep healthy and moisturised. Oils can play a key role in helping to deliver that extra nourishment evenly from root to tip.
Is Hair Oil Good For Thick Hair?
Thick hair can be beautiful and full of volume, but it may also need extra love and care. One of the main issues is that thick hair frequently requires more moisture and nourishment than finer hair types. Without proper care, thick hair can become dry, frizzy, and difficult to manage. Hair oil can be a simple yet powerful way to provide the hydration and nourishment that thick strands need. In this article, we’ll explore why thick hair benefits from hair oil, how to use it effectively, and which oils work best for extra hydration and manageability.
Why Thick Hair Needs More Moisture
Thick hair is made up of a higher density of strands. This means:
Natural oils have a harder time traveling
Sebum (the natural moisturising oils produced by the scalp) doesn’t always reach every strand properly, as there is naturally more surface area for the sebum to cover, which often results in hair that is more dry, particularly the mid lengths to the ends.
More surface area to protect
With thick hair comes more strands — and therefore more surface area that needs protection and nourishment. Each strand requires its own share of moisture and care, making consistent hydration especially important.
Prone to dryness and frizz
Because moisture can’t evenly distribute, whether it's from natural scalp oils (sebum) or topical nourishing products, thick hair is more likely to feel dry without extra nourishment.Prone to dryness and frizz
Because moisture can’t evenly distribute, whether it's from natural scalp oils (sebum) or topical nourishing products, thick hair is more likely to feel dry without extra nourishment.
Why Is Hair Oil Good for Thick Hair?
Hair oil provides several key benefits specifically for thick hair:
Deep Nourishment
Thick hair requires more nutrients and fatty acids to maintain flexibility and strength. Oils like castor oil, avocado oil and black seed oil deliver these essential components to each strand.
Moisture Retention
Because thick hair is prone to dryness, oils act as a barrier to prevent water loss, keeping hair hydrated for longer.
Improved Manageability
Thick hair can be difficult to detangle and style. Oils smooth the cuticle and reduce friction, making combing and styling easier.
Protection Against Damage
A layer of oil shields strands from environmental stressors, heat styling, and breakage, all of which are common problems for thick hair.
How to Apply Hair Oil for Thick Hair
Applying hair oil effectively is key to maximising its benefits. Here are some hair oiling steps for thick hair:
Divide hair into sections
Thick hair is dense, so working in sections ensures even coverage.
Apply the oil directly to both the scalp and strands
This allows the oil to add lubrication to the hair closest to the scalp while also acting as natural hair sebum travelling down the hair over time to keep the hair hydrated and nourished.
Massage into strands and scalp
Use your fingers to evenly distribute the oil, making sure each section gets hydration and nourishment. Massaging the oil also helps to increase blood flow to the follicles, delivering optimal nutrients to the strands.
Leave in or do an overnight treatment
Apply oil and leave it in as a leave-in treatment, or massage in and leave overnight for intensive hydration.
Comb through
Using a wide-tooth comb helps distribute oil evenly and prevents tangles.
The Best Oils for Thick Hair
Castor Oil
For thick hair, castor oil delivers deep nourishment to each strand, improving flexibility and reducing breakage. Its coating ability also helps smooth the hair, making thick strands easier to detangle and style. By both penetrating and sealing, castor oil ensures that thick hair receives the hydration it needs while protecting against environmental stress.
Avocado Oil
Avocado oil is packed with vitamins A, D, and E, as well as essential fatty acids. Its small molecular structure allows it to penetrate thick hair more effectively, delivering hydration deep into the cortex. Avocado oil softens coarse hair, improves elasticity, and makes thick hair more manageable. Regular use helps prevent dryness, frizz, and split ends, leaving thick hair feeling softer and healthier.
Black Seed Oil
Black seed oil, also known as black cumin seed oil, is a powerful sealant for thick hair. It helps lock in moisture provided by penetrating oils like avocado oil or castor oil. Its antioxidant and anti-inflammatory properties also support scalp health, which is crucial for maintaining strong, healthy thick hair.
Using Harir Hair Oil for Thick Hair
Harir Hair Oil combines castor oil, avocado oil and black seed oil into one nourishing formula specifically suited for thick hair. With regular application you can enhance the hydration, nourishment and manageability of thick hair




